Set Import & Export Limits

To select site import or export permissions, and/or to set site import or site export limits, select Settings > Import & Export Limits.

Site Import Permissions and Limit

Site Import Permissions setting determines whether Powerwall is allowed to charge from the grid. The default setting is to allow grid charging, except in instances where the customer does not own their system or the utility is restrictive.

Informational PurposesAn informational icon, calling your attention
Note
This setting is separate from the Grid Charging setting in the customer mobile app, which may overrule the installer setting for ITC reasons.
The Site Import Limit setting determines the amount of power (in Watts) that can be imported at the site meter. The default is a very high value, but a limit can be set to prevent breaker tripping. For example:
  • A home has six Powerwalls which charge from the grid at 5 kW each, for a total of 30 kW (125 A)
  • The home has a 100 A (24 kW) main breaker
  • The installer sets the Site Import Limit to 20,000 W (83 A) to prevent the main breaker from tripping

Site Export Permission and Limit

If the customer wants to export energy to the grid and has permission from the utility, you can change the Enable Exports setting to Enabled and configure the site export settings. Otherwise, keep this setting disabled. If the Site Export Permissions and Site Export Limit settings are configured without enabling this setting, Powerwall will not export energy to the grid.

Site Export Permissions setting determines what is allowed to export to the grid (the options are Default (Solar Only), Permanent Non Export, and Solar and Battery).

The Site Export Limit setting determines the amount of power (in Watts) that can be exported to the grid. This setting is used to protect breakers, or where the utility imposes a limit.